Case of power tool



FIG. 1 is a perspective view of a case of power tool showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the case of power tool that form no part of the claimed design. 

CLAIM The ornamental design for a case of power tool, as shown and described. 